Steam-exhaust head.



W. H. THOMAS.

STEAM EXHAUST HEAD.

APPLICATION FILED MAR.14,1910.

54 V Patented July 19, 1910.

w ,m w /5 3* 0 /Z 30 25 ss ,Z/ A} o o o o o o l0 furs Tm m'r/veru-z. B W! 4r ram/Ex WILLIAM H. THOMAS, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE DIRECT SEPA- RATOR COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

STEAM-EXHAUST HEAD.

Application filed March 14, 1910.

To all whom "it may concern:

Be it known that I, WILLIAM H. THOMAS, of Syracuse, in the county of Onondaga, in the State of New Yofk, have invented new and useful Improvements in Steam-Exhaust Heads, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improvements in exhaust heads adapted to be used as terminal connections or caps for steam pipes for muflling the noise of the escaping steam and at the same time effectively preventing the escape of water, oil and other substances which otherwise might be carried off with the escaping steam and deposited in the immediate vicinity of the exhaust. This deposit is not only destructive to the surrounding roofs and other property upon which it falls but is extremely unsanitary and constitutes a source of annoyance and injury to passers-by.

The main object therefore is to produce a self-cleansing, light and durable exhaust head which will more effectively prevent these objectionable results, and at the same time assist the action of the elements and effectually muffle the noise of the exhaust without creating excessive back pressure in the exhaust pipe.

Other objects and uses relating to specific parts of the device will be brought out in the following description.

In the drawings: Figure l is a longitudinal sectional view of an exhaust head embodying the various features of my invention. Fig. 2 is a transverse sectional view taken on line 22, Fig. 1. Fig. 3 is a top plan of the detached base section of the exhaust head.

This exhaust head preferably comprises a cast metal base section 1- and a plurality of, in this instance three, substantially concentric shells -2, 8 and 4l arranged one within the other and formed of heavy gage sheet copper or similar comparatively light material capable of resisting the disintegrating action of the elements. The base section 1- is frusto-conical in general form with its smaller end at the bottom and provided with an inlet opening 5 adapted to receive the adjacent end of the exhaust pipe, not shown, said base section being also provided with a perforated flange -6 for the reception of suitable Specification of Letters Patent.

Patented July 19, 1910.

Serial No. 549,149.

fastening means, such as bolts, by which it may be additionally secured to a roof or any other available support. This base section l is also provided with an inner comparatively shallow frusto-conical shell or basin 7 extending across the inner end of the opening 5 some distance above the bottom thereof and united to the main body by a hollow nipple 8- having a passage way 9- leading downwardly and outwardly from the bottom of the basin 7 to the exterior of the base section 1- and adapted to be connected to a suitable drain pipe, not shown, for the purpose of carrying off the water of condensation, oil and other substances which may accumulate on the bottom of said basin. The basin lies directly over and is of greater diameter than the opening 5- but of less diameter than the interior diameter of the main body of the base section -1 to form an intervening passage -10 for the upflowing steam which enters the opening -5, the bottom of the basin 7 constituting a deflector plate to deflect the steam laterally and upwardly through said passage. The copper shells -2, 3 and -4rwhich are also frusto-conical in general form and of gradually diminishing sizes are arranged concentrically one within the other with their smaller ends at the bottom, leaving intervening spaces 11 and -12- for the passage of the escaping steam.

The lower reduced end of the shell -2 is secured by suitable fastening means, as bolts or rivets 13, to the outer end of the outer shell of the base section 1, while the upper end is provided with a return bend or bead forming an inwardly clownwardly inclined flange 14. and groove 15- for a purpose presently described. The intermediate shell -3 is also secured at its lower reduced end by suitable fastening means, as rivets --16, to the upper end of the inner shell or basin 7 and extends upwardly some distance above the plane of the lower end of the inner shell 4 but terminates a short distance below the outer shell 2, so as. to establish communication between the upper ends of the steam chambers -11 and 12--.

The inner shell -lterminates at its upper end in substantially the same plane as the outer end of the outer shell 2 and therefore some distance above the outer end of the intermediate shell -3 where it is connected to the upper shell by means of an annular dish shape plate or basin 17- having its outer edge inserted and held in the groove -15 by the flange 14L- and its inner edge provided with an upturned flange 18 which is interlocked with a corresponding flange 19 on the upper end of the shell 4:-, the plate l7 serving to tie the inner and outer shells to each other and to form a downwardly and inwardly inclining battle to deflect the upflowing steam from the passage 11 into the upper end of the passage 12-. This inner shell 4 extends downwardly into and some distance below the outer end of the intermediate shell -3- but terminates some distance above the lower end of said intermediate shell, thereby leaving suflicient space between the bottom of the basin -7 and lower end of the shell l for the reception of a shallow perforated plate or basin 20.

The perforated plate 20- lies directly under and across the lower open end of the inner shell 4 and above the bottom of the basin 7 and is secured by suitable fastening means, as rivets 2l, to the intermediate shell 3, thereby forming a separator and collector for the water of condensation, oil or other matter which may be carried up with the exhaust steam, such matter being discharged through the perforations on to the underlying bottom of the basin 7 from which it is carried off through the drain passage 9.

The inner shell 2 is additionally supported and held concentrically with the shell 3 by stay-bolts 22 which connect said shells, the lower end of the shell 2 terminating in an outwardly and upwardly turned extension 2" forming an an nular groove or channel 24: for the re ception of any oil, water of condensation or other liquid substance which may accumulate on the outer surface of the shell -4E--. This accumulation of oil and moisture of condensation in the channel 24 is carried ofl" by suitable drain pipes 25 leading from said channels through suitable apertures in the perforated plate -20, so as to discharge into the basin -7-. In like manner any accumulation of water or moisture on the upper plate 17 is carried off by suitable drain pipes 26 which communicate with the upper surface of the plate l7 and extend downwardly through the perforated plate 20 to discharge into the basin 7.

In operation the steam entering the inlet 5 comes in contact with and is deflected by the bottom of the basin -7- whence it passes upwardly through the passage 1l and returns downwardly through the passage -12 and against the perforated plate 20. where the oil and moisture of condensation is separated from the steam and discharged through said perforations into the basin 7- and thence through the drain pipe 9, the areas of the passages 11 and -l2 being comparatively large, so as to prevent as far as possible back pressure in the exhaust pipe. It will be observed that the shell 4 is open from top to bottom and tapered clownwardly, the upper end being comparatively large, so that any rain or snow which may pass into this shell impinges against and cleanses by its own force of impact the perforated plate 20- from any accumulations of oil or other foreign matter which may lodge thereon. The drain pipes 26 leading from the lowermost portions of the plate -17 also serve a similar purpose in cleansing the interior of the basin 7, so

that the entire apparatus is self-cleansing I and effectively prevents the escape of excessive quantities of moisture, oil and other foreign matter which may be carried into the head with the exhaust steam.

By making the base section 1 of cast iron, it is better adapted to resist erosion and corrosion and is therefore more durable where the wear and strain is most severe, while the use of copper shells 2-, 3 and et permits the head to be made much larger without excessively increasing its weight, thereby increasing the efliciency of the head in carrying out the objects stated and permits such head to be manufactured at a much lower cost than usual.

hat I claim is:

1. In an exhaust head, a hollow base having an inlet in its lower end and a basin overlying the inlet and provided with an outlet, said basin being spaced apart from the outer walls of the base to form an intervening steam passage, an upwardly flaring shell having its lower end secured to the outer shell of the base, an inner shell concentric with the outer shell and spaced apart therefrom, and a baflie plate connecting the upper ends of the inner and outer shells.

2. In an exhaust head, a base comprising a hollow outer section having an inlet at its lower end and an inner basin overlying the inlet and spaced apart from the walls of the outer section to form a passage for the steam, said basin having an outlet, an upright shell having its lower end secured to the upper end of the outer section, an inner shell spaced apart from the outer shell and having its lower end secured to the basin and its upper end terminating some distance below the upper end of the outer shell, an additional shell supported from the upper end of the outer shell and extending downwardly into the inner shell but spaced apart therefrom.

3. In an exhaust head, a hollow base section having an inlet in its lower end and a basin overlying the inlet but spaced apart from the walls of the outer section, said basin having an outlet, an upwardly flaring shell having its lower end secured to the outer base section, an inner shell spaced apart from the outer shell forming an intervening steam passage, a baffle plate connecting the upper ends of said shells and inclining downwardly and inwardly, and a drain pipe leading from the lowermost portion of the baffle plate downwardly outside of the inner shell.

4. In an exhaust head, a hollow base having an inlet in its lower end, an upwardly flaring shell having its lower end secured to the base, an inner shell spaced apart from the outer shell and tapering from the top downward and terminating some distance above the bottom of the outer shell, the lower end of said inner shell being turned outwardly and upwardly to form an annular channel, a drain pipe leading from said channel, and a battle plate connecting the upper ends of said shells and inclosing the upper end of the intervening chamber.

5. In an exhaust head, a hollow base having an inlet, a shell secured to the base and rismg therefrom, a baflle plate secured to the upper end of the shell and inclining clownwardly and inwardly therefrom, and an inner shell spaced apart from the outer shell and having its upper end secured to the batlle plate and its lower end terminating some distance above the lower end of the outer shell.

6. In an exhaust head, a hollow base having an inlet, a shell secured to and rising from the inlet, a battle plate secured to the upper end of the shell and inclining downwardly and inwardly therefrom, a drain pipe leading from the lowermost point of the baffle plate, an inner shell having its upper end secured to the baffle plate and its lower end terminating some distance above the lower end of the outer shell and provided with an outwardly and upwardly turned flange forming an annular channel and a drip pipe leading from said channel.

7. An exhaust head comprising a hollow base section having an inlet and an inner basin overlying the inlet and spaced apart from the walls of the outer base section, said basin having an outlet, a shell having its lower end secured to the upper end of the outer base section, a baffle plate secured to the upper end of the shell and inclining downwardly and inwardly therefrom, an inner shell spaced apart from the outer shell and having its upper end secured to the baffle plate and its lower end terminating some distance above the bottom of the basin, an intermediate shell secured to and rising from the basin between and spaced apart from the outer and inner shells and having its upper end terminating some distance below the baffle plate.

8. An exhaust head comprising an upwardly flaring base section having an inlet in its lower end and a basin overlying the inlet and spaced apart from the walls of the outer base section, said basin having an outlet, an upwardly flaring shell secured to the outer base section, a baflle plate secured to the upper end of the shell and in clining downwardly and inwardly therefrom, an inner downwardly tapering shell spaced apart from the outer shell and having its upper end secured to the battle plate and its lower end terminating some distance above the bottom of the basin, and an intermediate upwardly flaring shell having its lower end secured to the basin and its upper end extending between the outer and inner shells and spaced apart therefrom, the upper end of said intermediate shell terminating some distance below the baffle plate.

In witness whereof I have hereunto set my hand on this 11th day of March 1910.

WILLIAM H. THOMAS.

Witnesses:

H. E. CHASE, A. L. HUMPHREY, 

